Portable electronic device and miniaturization rechargeable capacitive stylus thereof

ABSTRACT

A portable electronic device uses a miniaturization rechargeable capacitive stylus including a pen-shaped casing structure, a support structure, a circuit substrate, a sensor module, a pen head structure, an electrical connector structure, and a power supply component. The pen-shaped casing structure has a retaining convex portion. The electrical connector structure includes a carrier substrate positioned on the support structure and an electrical connector disposed on the carrier substrate, and the electrical connector has an electrical connection portion exposed from the pen-shaped casing structure. When the pen-shaped casing structure is inserted into a receiving space of the portable electronic device, the pen-shaped casing structure is positioned inside the receiving space of the portable electronic device by matching the retaining convex portion of the pen-shaped casing structure and a retaining concave portion that is disposed inside the receiving space of the portable electronic device.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The instant disclosure relates to an electronic device and a capacitivestylus thereof, and more particularly to a portable electronic deviceand a miniaturization rechargeable capacitive stylus thereof.

2. Description of Related Art

Conventional touch control devices may be classified into three types:resistive, electromagnetic and capacitive. Operation with a resistivetouch control device requires a rigid pen tip to apply a significantforce on the resistive touch control device in a very small area toaccomplish deformation of the resistive touch sensor, and anelectromagnetic touch control device requires a special battery poweredpen for input; while the working principle of a capacitive touch controldevice relies on capacitive coupling, which takes place as soon as thecapacitive touch sensor is touched by a conductive object, and the touchposition can then be identified according to the variation incapacitance at the touch point. Therefore, a capacitive touch controldevice does not require an input pen that consumes electricity. Nor isit necessary to subject a capacitive touch sensor to concentratedpressure application for deformation, and thus a capacitive touchcontrol device has a longer service life. Furthermore, mass productionof capacitive touch control devices requires lower costs due to itssimple construction, less components and higher yield rate.

A capacitive touch control device can be operated in many ways. The mostcommon of all is using a conductor, for example a finger or a pen, totouch or slide on the surface of the capacitive touch control device,for the capacitive touch sensor thereof to generate a response signal.However, as capacitive touch control devices find more and moreapplications, the lower precision on position detection tends to hindersmoothness of operation where more precise and more efficient detectionis required, such as in handheld devices. In order to enable enhancedprecision on position detection, many people choose to use pens forcapacitive touch input.

SUMMARY OF THE INVENTION

One aspect of the instant disclosure relates to a portable electronicdevice and a miniaturization rechargeable capacitive stylus thereof.

One of the embodiments of the instant disclosure provides aminiaturization rechargeable capacitive stylus, comprising: a pen-shapedcasing structure, a support structure, a circuit substrate, a sensormodule, a pen head structure, an electrical connector structure, and apower supply component. The pen-shaped casing structure has a retainingconvex portion disposed on a top side thereof. The support structure isdisposed inside the pen-shaped casing structure. The circuit substrateis positioned on the support structure and disposed inside thepen-shaped casing structure. The sensor module is positioned on thesupport structure and disposed inside the pen-shaped casing structure,and the sensor module is electrically connected to the circuitsubstrate. The pen head structure is movably disposed on the supportstructure to selectively contact the sensor module, and the pen headstructure has an exposed contact portion exposed from the pen-shapedcasing structure. The electrical connector structure is positioned onthe support structure and disposed inside the pen-shaped casingstructure. The electrical connector structure includes a carriersubstrate positioned on the support structure and an electricalconnector disposed on the carrier substrate and electrically connectedto the carrier substrate, and the electrical connector has an electricalconnection portion exposed from the pen-shaped casing structure. Thepower supply component is disposed on the support structure andelectrically connected between the circuit substrate and electricalconnector structure. More particularly, the pen-shaped casing structureis inserted into a receiving space of a portable electronic device, thepen-shaped casing structure is positioned inside the receiving space ofthe portable electronic device by matching the retaining convex portionof the pen-shaped casing structure and a retaining concave portion thatis disposed inside the receiving space of the portable electronicdevice.

Another one of the embodiments of the instant disclosure provides aportable electronic device using a miniaturization rechargeablecapacitive stylus. The miniaturization rechargeable capacitive styluscomprises a pen-shaped casing structure, a support structure, a circuitsubstrate, a sensor module, a pen head structure, an electricalconnector structure, and a power supply component. The pen-shaped casingstructure has a retaining convex portion disposed on a top side thereof.The support structure is disposed inside the pen-shaped casingstructure. The circuit substrate is positioned on the support structureand disposed inside the pen-shaped casing structure. The sensor moduleis positioned on the support structure and disposed inside thepen-shaped casing structure, and the sensor module is electricallyconnected to the circuit substrate. The pen head structure is movablydisposed on the support structure to selectively contact the sensormodule, and the pen head structure has an exposed contact portionexposed from the pen-shaped casing structure. The electrical connectorstructure is positioned on the support structure and disposed inside thepen-shaped casing structure. The electrical connector structure includesa carrier substrate positioned on the support structure and anelectrical connector disposed on the carrier substrate and electricallyconnected to the carrier substrate, and the electrical connector has anelectrical connection portion exposed from the pen-shaped casingstructure. The power supply component is disposed on the supportstructure and electrically connected between the circuit substrate andelectrical connector structure. More particularly, the pen-shaped casingstructure is inserted into a receiving space of a portable electronicdevice, the pen-shaped casing structure is positioned inside thereceiving space of the portable electronic device by matching theretaining convex portion of the pen-shaped casing structure and aretaining concave portion that is disposed inside the receiving space ofthe portable electronic device.

Therefore, when the pen-shaped casing structure (or the miniaturizationrechargeable capacitive stylus) is inserted into a receiving space ofthe portable electronic device, the pen-shaped casing structure (or theminiaturization rechargeable capacitive stylus) is positioned inside thereceiving space of the portable electronic device by matching theretaining convex portion of the pen-shaped casing structure and aretaining concave portion that is disposed inside the receiving space ofthe portable electronic device.

To further understand the techniques, means and effects of the instantdisclosure applied for achieving the prescribed objectives, thefollowing detailed descriptions and appended drawings are herebyreferred to, such that, and through which, the purposes, features andaspects of the instant disclosure can be thoroughly and concretelyappreciated. However, the appended drawings are provided solely forreference and illustration, without any intention to limit the instantdisclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a partial, perspective, exploded, schematic view of theminiaturization rechargeable capacitive stylus according to the instantdisclosure;

FIG. 2 shows another partial, perspective, exploded, schematic view ofthe miniaturization rechargeable capacitive stylus according to theinstant disclosure;

FIG. 3 shows a partial, perspective, assembled, schematic view of theminiaturization rechargeable capacitive stylus according to the instantdisclosure;

FIG. 4 shows a perspective, assembled, schematic view of theminiaturization rechargeable capacitive stylus according to the instantdisclosure;

FIG. 5 shows a cross-sectional view taken along the section line A-A ofFIG. 4;

FIG. 6 shows an enlarged view taken on part A of FIG. 5;

FIG. 7 shows an enlarged view taken on part B of FIG. 5;

FIG. 8 shows an enlarged view taken on part C of FIG. 5;

FIG. 9 shows an enlarged view taken on part D of FIG. 5;

FIG. 10 shows a partial, top, schematic view of the portable electronicdevice using the miniaturization rechargeable capacitive stylusaccording to the instant disclosure;

FIG. 11 shows a perspective, assembled, schematic view of theminiaturization rechargeable capacitive stylus according to anotherembodiment of the instant disclosure; and

FIG. 12 shows another perspective, assembled, schematic view of theminiaturization rechargeable capacitive stylus according to anotherembodiment of the instant disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The embodiments of “a portable electronic device and a miniaturizationrechargeable capacitive stylus (touch pen) thereof” of the instantdisclosure are described. Other advantages and objectives of the instantdisclosure can be easily understood by one skilled in the art from thedisclosure. The instant disclosure can be applied in differentembodiments. Various modifications and variations can be made to variousdetails in the description for different applications without departingfrom the scope of the instant disclosure. The drawings of the instantdisclosure are provided only for simple illustrations, but are not drawnto scale and do not reflect the actual relative dimensions. Thefollowing embodiments are provided to describe in detail the concept ofthe instant disclosure, and are not intended to limit the scope thereofin any way.

Referring to FIG. 1 to FIG. 10, the instant disclosure provides aminiaturization rechargeable capacitive stylus P and a portableelectronic device Z using the miniaturization rechargeable capacitivestylus P, and the miniaturization rechargeable capacitive stylus Pincludes a pen-shaped casing structure 1, a support structure 2, acircuit substrate 3, a sensor module 4, a pen head structure 5, anelectrical connector structure 6, and a power supply component 7.

First, referring to FIG. 1, FIG. 4, and FIG. 10, the pen-shaped casingstructure 1 has a retaining convex portion 100 disposed on a top sidethereof. For example, the pen-shaped casing structure 1 has a main penbody made of any metal material. More particularly, referring to FIG. 4and FIG. 10, when the pen-shaped casing structure 1 (or theminiaturization rechargeable capacitive stylus P) is inserted into areceiving space Z100 of a portable electronic device Z (such as a smartphone or a tablet computer), the pen-shaped casing structure 1 (or theminiaturization rechargeable capacitive stylus P) is positioned insidethe receiving space Z100 of the portable electronic device Z by matchingthe retaining convex portion 100 of the pen-shaped casing structure 1and a retaining concave portion Z101 that is disposed inside thereceiving space Z100 of the portable electronic device Z.

Moreover, FIG. 1, FIG. 2, and FIG. 8, the support structure 2 isdisposed inside the pen-shaped casing structure 1. More particularly,the support structure 2 includes a first support element 21 forsupporting the circuit substrate 3, the sensor module 4, the pen headstructure 5, and the power supply component 7, and a second supportelement 22 separated from the first support element 21 by apredetermined distance for supporting the electrical connector structure6, and the first support element 21 includes a first support body 211(or called as a bottom lateral holder) and a second support body 212 (orcalled as a top lateral holder) mated with the first support body 211.In addition, the first support body 211 has a plurality of firstretaining structures 2110 (such as retaining elements), the secondsupport body 212 has a plurality of second retaining structures 2120(such as retaining grooves) respectively corresponding to the firstretaining structures 2110, and the second retaining structures 2120 arerespectively mated with the first retaining structures 2110 forpositioning the second support body 212 on the first support body 211.Moreover, the first support body 211 has a positioning groove 2111, thepen-shaped casing structure 1 has a positioning hole 101 correspondingto the positioning groove 2111 and a positioning pin 102 correspondingto the positioning hole 101, and the positioning pin 102 can passthrough the positioning hole 101 and embedded into the positioninggroove 2111 for positioning the first support body 211 on the pen-shapedcasing structure 1 and concurrently fixing the position of the firstsupport body 211 relative to the pen-shaped casing structure 1.

Furthermore, FIG. 1, FIG. 2, and FIG. 5, the circuit substrate 3 ispositioned on the support structure 2 and disposed inside the pen-shapedcasing structure 1. The sensor module 4 is positioned on the supportstructure 2 and disposed inside the pen-shaped casing structure 1, andthe sensor module 4 is electrically connected to the circuit substrate 3through a conductive wire 40 (or called as a power transmission line).The pen head structure 5 is movably disposed on the support structure 2to selectively contact the sensor module 4, and the pen head structure 5has an exposed contact portion 50 exposed from the pen-shaped casingstructure 1. More particularly, the sensor module 4 can be used todetermine the degree of pressure when a user uses the miniaturizationrechargeable capacitive stylus P. The sensor module 4 then shows lineson the handwritten board (not shown). The lines may have differentthickness according to the degree of pressure.

In addition, FIG. 1, FIG. 2, FIG. 5, and FIG. 9, the electricalconnector structure 6 is positioned on the support structure 2 anddisposed inside the pen-shaped casing structure 1, and the power supplycomponent 7 (or an electrical storage component such as a rechargeablebattery) is disposed on the support structure 2 and electricallyconnected between the circuit substrate 3 and electrical connectorstructure 6. More particularly, the electrical connector structure 6includes a carrier substrate 60 positioned on the second support element22 of the support structure 2 through many securing elements S (such asscrews or bolts) and an electrical connector 61 disposed on the carriersubstrate 60 and electrically connected to the carrier substrate 60, andthe electrical connector 61 has an electrical connection portion 6100exposed from the pen-shaped casing structure 1. For example, theelectrical connector 61 includes two single needle spring connectors610. Each single needle spring connector 610 includes a fixed casing610A fixed on the carrier substrate 60, a compression spring 610Bdisposed inside the fixed casing 610A, and a movable element 610Cabutting against the compression spring 610B. One part of the movableelement 610C is disposed inside the fixed casing 610A to abut againstthe compression spring 610B, and the other part of the movable element610C is exposed from the pen-shaped casing structure 1 to form anelectrical connection portion 6100.

More particularly, FIG. 1, FIG. 2, FIG. 3, and FIG. 6, theminiaturization rechargeable capacitive stylus P of the instantdisclosure further comprises a signal receiving component 8 disposedaround the first support element 21 of the support structure 2, and thesignal receiving component 8 is electrically connected to the circuitsubstrate 3 through a conductive wire 80 (or called as a signal line).

More particularly, FIG. 1, FIG. 2, FIG. 3, and FIG. 6, theminiaturization rechargeable capacitive stylus P of the instantdisclosure further comprises an elastic component 9 (or called as asignal transmitting component). The elastic component 9 includes anelastic winding portion 90 disposed around a pen core seat 51 of the penhead structure 5 and a conductive connection portion 91 extended fromthe elastic winding portion 90 to the circuit substrate 3. In addition,the elastic winding portion 90 has a first end 901 far away from thesensor module 4 and a second end 902 opposite to the first end 901 andadjacent to the sensor module 4. The first end 901 of the elasticwinding portion 90 is abutted against a position limiting portion 510 ofthe pen head structure 5, and the conductive connection portion 91 iselectrically connected between the second end 902 of the elastic windingportion 90 and the circuit substrate 3.

More particularly, FIG. 1, FIG. 2, and FIG. 7, the miniaturizationrechargeable capacitive stylus P of the instant disclosure furthercomprises a ground component G. The ground component G has a fixedportion G1 disposed on the circuit substrate 3 and electricallycontacting the circuit substrate 3 and a movable elastic portion G2extended from the fixed portion G1. The movable elastic portion G2 hasan abutting portion G20 exposed from a through opening 2112 of the firstsupport body 211 of the support structure 2 to abut against an innersurface 1000 of the pen-shaped casing structure 1 and a suspend portionG21 extended from the abutting portion G20 and inserted into or passingthrough the circuit substrate 3.

More particularly, FIG. 1, FIG. 8, and FIG. 9, the miniaturizationrechargeable capacitive stylus P of the instant disclosure furthercomprises a LED indicator lamp L. The LED indicator lamp L is disposedon the carrier substrate 60 and electrically connected to the carriersubstrate 60. The pen-shaped structure 1 has a light-transmitting coverbody 11 adjacent to the LED indicator lamp L, and an indicator lightsource L10 generated by the LED indicator lamp L passes through thelight-transmitting cover body 11 for indication.

Please note, the miniaturization rechargeable capacitive stylus P of theinstant disclosure can use a circular pen-shaped structure 1 (as shownin FIG. 4) or a square pen-shaped structure 1 (as shown in FIG. 11 andFIG. 12) according to different requirements, so that the shape of thepen-shaped structure 1 in FIG. 4 or FIG. 11 is merely an example and isnot meant to limit the instant disclosure.

In conclusion, when the pen-shaped casing structure 1 (or theminiaturization rechargeable capacitive stylus P) is inserted into thereceiving space Z100 of the portable electronic device Z (such as asmart phone or a tablet computer), the pen-shaped casing structure 1 (orthe miniaturization rechargeable capacitive stylus P) is positionedinside the receiving space Z100 of the portable electronic device Z bymatching the retaining convex portion 100 of the pen-shaped casingstructure 1 and the retaining concave portion Z101 that is disposedinside the receiving space Z100 of the portable electronic device Z.

Please note, when the miniaturization rechargeable capacitive stylus Pis inserted into the receiving space Z100 of the portable electronicdevice Z, the miniaturization rechargeable capacitive stylus P iselectrically connected with the portable electronic device Z through thetwo single needle spring connectors 610, so that the miniaturizationrechargeable capacitive stylus P can be charged through the two singleneedle spring connectors 610.

The aforementioned descriptions merely represent the preferredembodiments of the instant disclosure, without any intention to limitthe scope of the instant disclosure which is fully described only withinthe following claims. Various equivalent changes, alterations ormodifications based on the claims of the instant disclosure are all,consequently, viewed as being embraced by the scope of the instantdisclosure.

What is claimed is:
 1. A miniaturization rechargeable capacitive stylus,comprising: a pen-shaped casing structure having a retaining convexportion disposed on a top side thereof; a support structure disposedinside the pen-shaped casing structure; a circuit substrate positionedon the support structure and disposed inside the pen-shaped casingstructure; a sensor module positioned on the support structure anddisposed inside the pen-shaped casing structure, wherein the sensormodule is electrically connected to the circuit substrate; a pen headstructure movably disposed on the support structure to selectivelycontact the sensor module, wherein the pen head structure has an exposedcontact portion exposed from the pen-shaped casing structure; anelectrical connector structure positioned on the support structure anddisposed inside the pen-shaped casing structure, wherein the electricalconnector structure includes a carrier substrate positioned on thesupport structure and an electrical connector disposed on the carriersubstrate and electrically connected to the carrier substrate, and theelectrical connector has an electrical connection portion exposed fromthe pen-shaped casing structure; and a power supply component disposedon the support structure and electrically connected between the circuitsubstrate and electrical connector structure; wherein the pen-shapedcasing structure is inserted into a receiving space of a portableelectronic device, the pen-shaped casing structure is positioned insidethe receiving space of the portable electronic device by matching theretaining convex portion of the pen-shaped casing structure and aretaining concave portion that is disposed inside the receiving space ofthe portable electronic device.
 2. The miniaturization rechargeablecapacitive stylus of claim 1, wherein the support structure includes afirst support element for supporting the circuit substrate, the sensormodule, the pen head structure, and the power supply component, and asecond support element separated from the first support element by apredetermined distance for supporting the electrical connectorstructure, and the first support element includes a first support bodyand a second support body mated with the first support body.
 3. Theminiaturization rechargeable capacitive stylus of claim 2, wherein thefirst support body has a plurality of first retaining structures, thesecond support body has a plurality of second retaining structuresrespectively corresponding to the first retaining structures, and thesecond retaining structures are respectively mated with the firstretaining structures for positioning the second support body on thefirst support body, wherein the first support body has a positioninggroove, the pen-shaped casing structure has a positioning holecorresponding to the positioning groove and a positioning pincorresponding to the positioning hole, and the positioning pin passesthrough the positioning hole and embedded into the positioning groovefor positioning the first support body on the pen-shaped casingstructure and fixing the position of the first support body relative tothe pen-shaped casing structure.
 4. The miniaturization rechargeablecapacitive stylus of claim 1, further comprising: a signal receivingcomponent disposed around the support structure, wherein the signalreceiving component is electrically connected to the circuit substratethrough a conductive wire.
 5. The miniaturization rechargeablecapacitive stylus of claim 1, further comprising: an elastic componentincluding an elastic winding portion disposed around a pen core seat ofthe pen head structure and a conductive connection portion extended fromthe elastic winding portion to the circuit substrate, wherein theelastic winding portion has a first end far away from the sensor moduleand a second end opposite to the first end and adjacent to the sensormodule, the first end of the elastic winding portion is abutted againsta position limiting portion of the pen head structure, and theconductive connection portion is electrically connected between thesecond end of the elastic winding portion and the circuit substrate. 6.The miniaturization rechargeable capacitive stylus of claim 1, furthercomprising: a ground component having a fixed portion disposed on thecircuit substrate and electrically contacting the circuit substrate anda movable elastic portion extended from the fixed portion, wherein themovable elastic portion has an abutting portion exposed from the supportstructure to abut against an inner surface of the pen-shaped casingstructure and a suspend portion extended from the abutting portion andinserted into or passing through the circuit substrate.
 7. Theminiaturization rechargeable capacitive stylus of claim 1, furthercomprising: a LED indicator lamp disposed on the carrier substrate andelectrically connected to the carrier substrate, the pen-shapedstructure has a light-transmitting cover body adjacent to the LEDindicator lamp, and an indicator light source generated by the LEDindicator lamp passes through the light-transmitting cover body, whereinthe electrical connector includes two single needle spring connectors,each single needle spring connector includes a fixed casing fixed on thecarrier substrate, a compression spring disposed inside the fixedcasing, and a movable element abutting against the compression spring,one part of the movable element is disposed inside the fixed casing toabut against the compression spring, and the other part of the movableelement is exposed from the pen-shaped casing structure.
 8. A portableelectronic device using a miniaturization rechargeable capacitivestylus, the miniaturization rechargeable capacitive stylus comprising: apen-shaped casing structure having a retaining convex portion disposedon a top side thereof; a support structure disposed inside thepen-shaped casing structure; a circuit substrate positioned on thesupport structure and disposed inside the pen-shaped casing structure; asensor module positioned on the support structure and disposed insidethe pen-shaped casing structure, wherein the sensor module iselectrically connected to the circuit substrate; a pen head structuremovably disposed on the support structure to selectively contact thesensor module, wherein the pen head structure has an exposed contactportion exposed from the pen-shaped casing structure; an electricalconnector structure positioned on the support structure and disposedinside the pen-shaped casing structure, wherein the electrical connectorstructure includes a carrier substrate positioned on the supportstructure and an electrical connector disposed on the carrier substrateand electrically connected to the carrier substrate, and the electricalconnector has an electrical connection portion exposed from thepen-shaped casing structure; and a power supply component disposed onthe support structure and electrically connected between the circuitsubstrate and electrical connector structure; wherein the pen-shapedcasing structure is inserted into a receiving space of a portableelectronic device, the pen-shaped casing structure is positioned insidethe receiving space of the portable electronic device by matching theretaining convex portion of the pen-shaped casing structure and aretaining concave portion that is disposed inside the receiving space ofthe portable electronic device.
 9. The portable electronic device ofclaim 8, wherein the support structure includes a first support elementfor supporting the circuit substrate, the sensor module, the pen headstructure, and the power supply component, and a second support elementseparated from the first support element by a predetermined distance forsupporting the electrical connector structure, and the first supportelement includes a first support body and a second support body matedwith the first support body, wherein the first support body has aplurality of first retaining structures, the second support body has aplurality of second retaining structures respectively corresponding tothe first retaining structures, and the second retaining structures arerespectively mated with the first retaining structures for positioningthe second support body on the first support body, wherein the firstsupport body has a positioning groove, the pen-shaped casing structurehas a positioning hole corresponding to the positioning groove and apositioning pin corresponding to the positioning hole, and thepositioning pin passes through the positioning hole and embedded intothe positioning groove for positioning the first support body on thepen-shaped casing structure and fixing the position of the first supportbody relative to the pen-shaped casing structure, wherein the electricalconnector includes two single needle spring connectors, each singleneedle spring connector includes a fixed casing fixed on the carriersubstrate, a compression spring disposed inside the fixed casing, and amovable element abutting against the compression spring, one part of themovable element is disposed inside the fixed casing to abut against thecompression spring, and the other part of the movable element is exposedfrom the pen-shaped casing structure.
 10. The portable electronic deviceof claim 8, further comprising: a signal receiving component disposedaround the support structure, wherein the signal receiving component iselectrically connected to the circuit substrate through a conductivewire; an elastic component including an elastic winding portion disposedaround a pen core seat of the pen head structure and a conductiveconnection portion extended from the elastic winding portion to thecircuit substrate, wherein the elastic winding portion has a first endfar away from the sensor module and a second end opposite to the firstend and adjacent to the sensor module, the first end of the elasticwinding portion is abutted against a position limiting portion of thepen head structure, and the conductive connection portion iselectrically connected between the second end of the elastic windingportion and the circuit substrate; a ground component having a fixedportion disposed on the circuit substrate and electrically contactingthe circuit substrate and a movable elastic portion extended from thefixed portion, wherein the movable elastic portion has an abuttingportion exposed from the support structure to abut against an innersurface of the pen-shaped casing structure and a suspend portionextended from the abutting portion and inserted into or passing throughthe circuit substrate; and a LED indicator lamp disposed on the carriersubstrate and electrically connected to the carrier substrate, thepen-shaped structure has a light-transmitting cover body adjacent to theLED indicator lamp, and an indicator light source generated by the LEDindicator lamp passes through the light-transmitting cover body.